Technique for recycling precious metal from factory lean ore through dump leaching and ore dressing device
An industrialized precious metal technology, which is applied to the production process of hydrometallurgy, the process of industrialized lean ore heap leaching to recover precious metals, and the field of beneficiation devices, which can solve the problems of polluting the environment and endangering human health.
Inactive Publication Date: 2016-08-17
李强
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The purpose of the present invention is to solve the problem that the existing heap leaching process pollutes the environment and endangers human health, and provides a process for recovering precious metals by heap leaching of industrialized lean ore and an ore dressing device. This method can isolate employees from the polluted environment and avoid Personal hazards, remote control of mechanical operations; in a closed factory building, a series of operations such as feeding, liquid injection, washing, and discharge are automatically completed to realize heap leaching of lean ore to recover precious metals without pollution to the environment, automatic and continuous extraction of heap leaching Precious metals such as gold and silver
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0013] The present invention will be further described below in conjunction with the accompanying drawings and examples.
[0014] Such as figure 1 , 2 As shown, the heap leaching tank 19 of the present invention is surrounded by a plurality of pillars 1 to support the greenhouse 7, and an openable or detachable shielding plate is installed between the pillars. Driven, it can run back and forth on the steel rail 13 on the top of the pool. The gantry bridge 11 is equipped with a reclaimer 4, a spreader 5, a defilter 9 and a belt conveyor 14. The reclaimer 4 unloads the ore powder evenly. Falling on the belt of the belt conveyor 14, the spreader 5 slowly moves forward along the same direction as the conveyor belt, and the scraper scrapes off the ore powder on the belt of the belt conveyor 14 into the heap leach tank 19, or the belt conveyor 14 The belt deflects at a certain angle at the unloading point in turn, allowing the bulk mineral material to slide down in the pool. The ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a technique for recycling precious metal from factory lean ore through dump leaching and an ore dressing device. The ore dressing device comprises a dump leaching pool (19), a pregnant solution pool (23), a canopy (7), a taking machine (4), a gantry bridge crane frame (11), a spreading machine (5), a belt conveyor (14), a dewatering and washing integrated machine (9), a feeding machine (2) and other infrastructures and mechanical devices. The spreading machine (5), the conveyor (14), the taking machine (4) and the dewatering and washing integrated machine (9) on the gantry bridge crane frame (11) are subjected to manual remote control, so that a series of procedures including feeding, spreading, dump leaching, dewatering and discharging are completed. An ore leaching solution is sprayed out through a spray nozzle (5) installed in the dump leaching pool. The precious metal is separated out through a winning cell (26). Solutions of different concentrations are allocated into the pools through an electric pump (21) for recovery. By the adoption of the technique and the ore dressing device, the pollution of harmful gas and dust to the atmospheric environment can be effectively isolated, and innocent treatment is conducted on hazardous waste.
Description
[0001] The invention relates to a production process suitable for recovery of precious metals such as gold and silver in lean ore or solid waste in a dressing plant, and other rare and precious metals suitable for hydrometallurgy. In particular, it relates to a process for recovering precious metals by heap leaching of industrial lean ore and a beneficiation device. Background technique [0002] At present, the relevant laws and regulations on environmental protection in my country strictly prohibit ore concentrators from adopting the open-pit heap leaching process to process low-grade gold, silver and other precious metal ores. This is based on the fact that the existing heap leaching process has a great impact on the original ecological environment. Physical labor intensity is high, if the protection is not proper, it is easy to cause poisoning accidents. Moreover, the existing heap leaching process adopts a simple anti-seepage method of laying membranes, which cannot effecti...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/02C22B11/00C22B3/04
CPCC22B3/02C22B3/04C22B11/042Y02P10/20
Inventor 李强
Owner 李强